bitcoin qt setup – Altcoin Ubuntu-qt not opening with double click

Altcoin created from Bitcoin 0.21 
System: Ubuntu 18.04
All dependencies installed. 

I have successfully compiled Windows, Ubuntu, and Mac QT wallets of the Altcoin using the depends system. All three wallets work.

But for Ubuntu, I need to open terminal and type:

./altcoin-qt 

in order to run the wallet. Is there anyway to make it executable just like Windows and Mac wallet, without need to keep the terminal open ?

Thanks.